An MTC battery frame and a commercial electric vehicle

Abstract

This invention belongs to the field of automotive technology and discloses an MTC battery frame and a commercial electric vehicle. The MTC battery frame includes a crossbeam assembly, a bracket assembly, a longitudinal beam assembly, a sealing plate assembly, and a skin assembly. The crossbeam assembly includes an upper crossbeam layer, a middle crossbeam layer, and a lower crossbeam layer, with multiple bracket assemblies supported and installed between the upper, middle, and lower crossbeam layers along a third direction; the longitudinal beam assembly includes an upper longitudinal beam layer and a lower longitudinal beam layer. The sealing plate assembly forms an open end in a first direction and includes an upper sealing plate layer, a lower sealing plate layer, a front sealing plate layer, and a rear sealing plate layer. The skin assembly includes an upper skin layer and a lower skin layer. This MTC battery frame can both fix and support the battery and be used as a mid-section frame, greatly improving the vehicle's resistance to bending moment and torque, and providing a complete large-capacity space for the battery module, which is beneficial for increasing battery capacity.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and more particularly to an MTC battery frame and a commercial electric vehicle. Background Technology

[0002] Currently, commercial vehicle platforms are facing a critical moment in their transition to new energy vehicles, and battery layout and capacity are receiving increasing attention. Commercial vehicles require innovative layout methods and larger battery capacities. Most existing pure electric commercial vehicle batteries are side-mounted, placing the battery on one side of the vehicle. This limits battery capacity, and the batteries have low torsional stiffness, poor safety, and high vehicle safety risks. Summary of the Invention

[0003] The purpose of this invention is to provide an MTC battery frame and a commercial electric vehicle to solve the problems of low assembly capacity, poor bending moment resistance, and poor torque resistance of existing new energy commercial vehicle batteries.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] On the one hand, an MTC battery vehicle frame is provided, including:

[0006] The crossbeam assembly includes an upper crossbeam layer group, a middle crossbeam layer group, and a lower crossbeam layer group arranged at intervals from top to bottom, wherein the upper crossbeam layer group, the middle crossbeam layer group, and the lower crossbeam layer group are arranged along a first direction;

[0007] Multiple support assemblies are provided, and the multiple support assemblies are supported and installed between the upper crossbeam layer group, the middle crossbeam layer group and the lower crossbeam layer group along a third direction;

[0008] The longitudinal beam assembly includes an upper longitudinal beam layer group and a lower longitudinal beam layer group, wherein the upper longitudinal beam layer group is connected to the upper transverse beam layer group, and the lower longitudinal beam layer group is connected to the lower transverse beam layer group;

[0009] A sealing plate assembly having an open end in a first direction, the sealing plate assembly including an upper sealing plate layer group, a lower sealing plate layer group, a front sealing plate layer group, and a rear sealing plate layer group; the upper sealing plate layer group is installed between the upper longitudinal beam layer group and the upper transverse beam layer group, the lower sealing plate layer group is installed between the lower longitudinal beam layer group and the lower transverse beam layer group; the front sealing plate layer group is installed at one end of the upper transverse beam layer group and the lower transverse beam layer group along a second direction, and the rear sealing plate layer group is installed at the other end of the upper transverse beam layer group and the lower transverse beam layer group along the second direction;

[0010] The skin assembly includes an upper skin layer group and a lower skin layer group. The lower skin layer group is connected to the lower longitudinal beam layer group and is bent towards the upper longitudinal beam layer group to cover the opening end. The upper skin layer group is connected to the upper longitudinal beam layer group and is partially bent towards the lower longitudinal beam layer group and connected to the lower skin layer group.

[0011] Optionally, it also includes an upper cover plate, which is installed on the upper longitudinal beam assembly.

[0012] Optionally, the front sealing plate assembly and the rear sealing plate assembly are respectively provided with wire harness brackets for fixing the battery wire harness.

[0013] Optionally, it also includes a wire harness bracket, which is installed on the lower longitudinal beam layer and extends along the second direction.

[0014] Optionally, the upper crossbeam layer group includes four upper crossbeams, and the lower crossbeam layer group includes four lower crossbeams, with the upper crossbeams and the lower crossbeams arranged at intervals in a one-to-one correspondence.

[0015] Optionally, the middle crossbeam assembly includes eight middle crossbeams, with each pair of middle crossbeams symmetrically fixed to form a middle crossbeam assembly, spaced apart between the upper crossbeam and the lower crossbeam.

[0016] Optionally, the support assembly includes a support rod and a support, with the support connected to both ends of the support rod.

[0017] Optionally, wire harness through holes are respectively provided on the front sealing plate layer assembly and the rear sealing plate layer assembly.

[0018] Optionally, the upper longitudinal beam layer group and the lower longitudinal beam layer group are arranged along the second direction, the upper longitudinal beam layer group is perpendicularly connected to the upper transverse beam layer group, and the lower longitudinal beam layer group is perpendicularly connected to the lower transverse beam layer group.

[0019] On the other hand, a commercial electric vehicle is provided, including the aforementioned MTC battery frame.

[0020] The beneficial effects of this invention are:

[0021] The MTC battery vehicle frame of this invention has a frame connection structure. The upper longitudinal beam layer, multiple support components, and the lower longitudinal beam layer form a quadrilateral frame support structure; the upper crossbeam layer, multiple support components, and the middle crossbeam layer form a quadrilateral frame support structure; and the middle crossbeam layer, multiple support components, and the lower crossbeam layer form a quadrilateral frame support structure. This MTC battery vehicle frame is formed by multiple nested quadrilateral frame structures. By integrating the battery module with the chassis using the MTC method, it can not only fix and support the battery, but also be used as a mid-section frame, replacing the original mid-section frame. This greatly improves the vehicle's resistance to bending moment and torque, and also provides a complete large-capacity space for the battery module, which is conducive to increasing battery capacity.

[0022] The commercial electric vehicle uses the aforementioned MTC battery frame. This commercial electric vehicle has a large battery capacity, long driving range, strong resistance to bending moment and torque, and high vehicle safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the MTC battery vehicle frame structure described in an embodiment of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the MTC battery vehicle frame structure described in an embodiment of the present invention. Figure 2 (Parts of the upper and lower skin layers are hidden);

[0025] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0026] In the picture:

[0027] 1. Crossbeam assembly; 11. Upper crossbeam layer assembly; 111. Upper crossbeam; 12. Middle crossbeam layer assembly; 121. Middle crossbeam; 13. Lower crossbeam layer assembly; 131. Lower crossbeam;

[0028] 2. Support assembly; 21. Support rod; 22. Support;

[0029] 3. Longitudinal beam assembly; 31. Upper longitudinal beam layer group; 311. Upper longitudinal beam; 32. Lower longitudinal beam layer group; 321. Lower longitudinal beam;

[0030] 4. Sealing plate assembly; 41. Upper sealing plate layer assembly; 42. Lower sealing plate layer assembly; 43. Front sealing plate layer assembly; 44. Rear sealing plate layer assembly; 45. Wire harness bracket; 46. Wire harness through hole; 47. Open end;

[0031] 5. Skin assembly; 51. Upper skin layer assembly; 511. Upper skin; 52. Lower skin layer assembly; 521. Lower skin;

[0032] 6. Top cover plate; 7. Wiring harness bracket. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1-3 As shown, the present invention provides an MTC battery vehicle frame. Figure 1 and Figure 2The X, Y, and Z directions shown are the first, second, and third directions described below, respectively. The MTC battery frame includes a crossbeam assembly 1, a bracket assembly 2, a longitudinal beam assembly 3, a sealing plate assembly 4, and a skin assembly 5.

[0039] like Figure 2 As shown, the crossbeam assembly 1 includes an upper crossbeam layer group 11, a middle crossbeam layer group 12, and a lower crossbeam layer group 13 arranged at intervals from top to bottom. Optionally, the upper crossbeam layer group 11, the middle crossbeam layer group 12, and the lower crossbeam layer group 13 are respectively formed by upper crossbeams 111, middle crossbeams 121, and lower crossbeams 131, and are all arranged along the first direction X. Specifically, in this embodiment, the upper crossbeam layer group 11 includes four upper crossbeams 111, and the lower crossbeam layer group 13 includes four lower crossbeams 131, with the upper crossbeams 111 and lower crossbeams 131 arranged at intervals in a one-to-one correspondence. The middle crossbeam layer group 12 includes eight middle crossbeams 121, and every two middle crossbeams 121 are symmetrically fixed together by fasteners to form a middle crossbeam assembly, such as... Figure 3 As shown, the upper crossbeam 111 and the lower crossbeam 131 are spaced apart. The upper crossbeam 111, the middle crossbeam 121 and the lower crossbeam 131 are all stamped parts, in the shape of a "Z", which serve to resist torque. The middle crossbeam 121 and the lower crossbeam 131 also provide connecting holes for battery installation.

[0040] Multiple support components 2 are provided, and these multiple support components 2 are installed along a third direction Y-axis between the upper crossbeam layer 11, the middle crossbeam layer 12, and the lower crossbeam layer 13. Specifically, as follows... Figure 3 As shown, the support assembly 2 includes a support rod 21 and a support 22. The support rod 21 is a rectangular tube, and the two ends of the support rod 21 are respectively welded to the support 22. One end of the support assembly 2 is connected to the middle crossbeam assembly, and the other end is connected to the upper crossbeam 111 or the lower crossbeam 131, which can provide third-party Z-axis support for the battery.

[0041] Longitudinal beam assembly 3, such as Figure 2 As shown, the system includes an upper longitudinal beam layer 31 and a lower longitudinal beam layer 32. The upper longitudinal beam layer 31 is connected to the upper crossbeam layer 11 by fasteners, and the lower longitudinal beam layer 32 is connected to the lower crossbeam layer 13 by fasteners. Specifically, the upper longitudinal beam layer 31 is composed of multiple upper longitudinal beams 311, and the lower longitudinal beam layer 32 is composed of multiple lower longitudinal beams 321. The upper longitudinal beams 311 and lower longitudinal beams 321 are arranged along a second direction and are perpendicularly connected to the upper crossbeam 111 of the upper crossbeam layer 11 and the lower crossbeam 131 of the lower crossbeam layer 13, respectively. Both the upper longitudinal beams 311 and lower longitudinal beams 321 are stamped parts. The upper longitudinal beams 311 and lower longitudinal beams 321 play a role in resisting bending moments. At the same time, the lower longitudinal beams 321 can also provide connection holes for the lower skin layer 52 and the front and rear vehicle structures.

[0042] Sealing plate assembly 4, such as Figure 2As shown, the sealing plate assembly 4 includes an upper sealing plate layer 41, a lower sealing plate layer 42, a front sealing plate layer 43, and a rear sealing plate layer 44. The upper sealing plate layer 41, lower sealing plate layer 42, front sealing plate layer 43, and rear sealing plate layer 44 are arranged circumferentially and form an opening end 47 in the first direction X. The upper sealing plate layer 41 is installed between the upper longitudinal beam layer 31 and the upper transverse beam layer 11, and the lower sealing plate layer 42 is installed between the lower longitudinal beam layer 32 and the lower transverse beam layer 13. The front sealing plate layer 43 is installed at one end of the upper transverse beam layer 11 and the lower transverse beam layer 13 along the second direction Y, and the rear sealing plate layer 44 is installed at the other end of the upper transverse beam layer 11 and the lower transverse beam layer 13 along the second direction Y. The upper sealing plate assembly 41, lower sealing plate assembly 42, front sealing plate assembly 43, and rear sealing plate assembly 44 form a hollow cavity structure with openings at both ends along the first direction X. The battery is installed inside the sealing plate assembly 4. Optionally, in this embodiment, the upper sealing plate assembly 41 and lower sealing plate assembly 42 are stamped parts, and the sealing requirements of the battery are met by using sealing gaskets and adhesive strips. The front sealing plate assembly 43 and rear sealing plate assembly 44 are formed by connecting multiple sealing plates, and the sealing requirements of the battery are also met by using sealing gaskets and adhesive strips.

[0043] Skin component 5, such as Figure 1 As shown, the system includes an upper skin layer assembly 51 and a lower skin layer assembly 52. ​​The lower skin layer assembly 52 includes two lower skins 521, which are symmetrically arranged along the second direction Y to cover the opening end 47. The lower skin 521 is bent into an L-shape, with one end connected to the lower longitudinal beam 321 of the lower longitudinal beam layer assembly 32, and the other end bent towards the upper longitudinal beam layer assembly 31 to cover the opening end 47, thus providing connection holes for the front and rear frame structures. The upper skin layer assembly 51 includes two upper skins 511, which are symmetrically arranged along the second direction Y. One end is connected to the upper longitudinal beam 311, and the other end is partially bent towards the lower longitudinal beam layer assembly 32 and connected and fixed to the lower skin 521, thus providing connection holes for the front and rear frame structures.

[0044] In summary, the MTC battery vehicle frame of this invention has a frame connection structure. The upper longitudinal beam layer 31, multiple support components 2, and lower longitudinal beam layer 32 mutually form a quadrilateral frame support structure; the upper crossbeam layer 11, multiple support components 2, and middle crossbeam layer 12 mutually form a quadrilateral frame support structure; and the middle crossbeam layer 12, multiple support components 2, and lower crossbeam layer 13 mutually form a quadrilateral frame support structure. This MTC battery vehicle frame is formed by multiple nested quadrilateral frame structures. By adopting the MTC (Module to Chassis) method, the battery module is integrated with the chassis. It can not only fix and support the battery, but also be used as a mid-section frame, replacing the original mid-section frame. This greatly improves the vehicle's resistance to bending moment and torque, and also provides a complete large-capacity space for the battery module, which can increase the battery capacity by 20%, resulting in a significant increase in battery capacity.

[0045] Optionally, the MTC battery frame also includes an upper cover plate 6, which is installed on the upper longitudinal beam layer 31 and fixedly connected to the upper longitudinal beam 311 by fasteners to reduce the risk of power battery fire and explosion and improve battery safety.

[0046] Optionally, to facilitate the arrangement of the battery wiring harness, the front sealing plate layer 43 and the rear sealing plate layer 44 are respectively provided with wiring harness brackets 45 for fixing the battery wiring harness. The wiring harness brackets 45 are fixed to the front sealing plate layer 43 and the rear sealing plate layer 44 by welding.

[0047] Optionally, the MTC battery frame also includes a wiring harness bracket 7, which provides a support point for the battery wiring harness. The wiring harness bracket 7 is mounted on the lower longitudinal beam layer group 32 and extends along the second direction Y.

[0048] Optionally, wire harness through holes 46 are provided on the front sealing plate layer 43 and the rear sealing plate layer 44 respectively to facilitate the lead-out of the wire harness.

[0049] In addition, the present invention also provides a commercial electric vehicle that uses the above-mentioned MTC battery frame. This commercial electric vehicle has a large battery capacity, long driving range, strong resistance to bending moment and torque, and high vehicle safety.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An MTC battery car frame, characterized by, The utility model relates to a kind of battery pack, including: Crossbeam assembly (1), including upper crossbeam layer group (11) from top to bottom interval arrangement, middle crossbeam layer group (12) and lower crossbeam layer group (13), the upper crossbeam layer group (11), the middle crossbeam layer group (12) and the lower crossbeam layer group (13) are arranged along the first direction;The upper crossbeam (111), the middle crossbeam (121) and the lower crossbeam (131) are all stamping forming piece, present several character shape, play the role of resisting torque; Support assembly (2) is provided with multiple, multiple support assembly (2) is supported and installed between the upper crossbeam layer group (11), the middle crossbeam layer group (12) and the lower crossbeam layer group (13) along the third direction; Longeron assembly (3), including upper longitudinal beam layer group (31) and lower longitudinal beam layer group (32), the upper longitudinal beam layer group (31) is connected with the upper crossbeam layer group (11), and the lower longitudinal beam layer group (32) is connected with the lower crossbeam layer group (13); Sealing plate assembly (4), the sealing plate assembly (4) forms open end (47) in the first direction, and the sealing plate assembly (4) includes upper sealing plate layer group (41), lower sealing plate layer group (42), front sealing plate layer group (43) and rear sealing plate layer group (44);The upper sealing plate layer group (41) is installed between the upper longitudinal beam layer group (31) and the upper crossbeam layer group (11), and the lower sealing plate layer group (42) is installed between the lower longitudinal beam layer group (32) and the lower crossbeam layer group (13);The front sealing plate layer group (43) is installed to one end of the upper crossbeam layer group (11) and the lower crossbeam layer group (13) along the second direction, and the rear sealing plate layer group (44) is installed to the other end of the upper crossbeam layer group (11) and the lower crossbeam layer group (13) along the second direction; Skin assembly (5), including upper skin layer group (51) and lower skin layer group (52), the lower skin layer group (52) is connected with the lower longitudinal beam layer group (32), is bent towards the direction close to the upper longitudinal beam layer group (31) and covers the open end (47), and the upper skin layer group (51) is connected with the upper longitudinal beam layer group (31), is partially bent towards the direction close to the lower longitudinal beam layer group (32) and is connected with the lower skin layer group (52).

2. The MTC battery cart of claim 1, wherein, Still including upper cover plate (6), the upper cover plate (6) is installed on the upper longitudinal beam layer group (31).

3. The MTC battery cart of claim 1, wherein, The front sealing plate layer group (43) and the rear sealing plate layer group (44) are respectively provided with wire harness support (45) for fixing battery wire harness.

4. The MTC battery cart of claim 1, wherein, Still including wire harness bracket (7), the wire harness bracket (7) is installed on the lower longitudinal beam layer group (32) layer group, and is arranged along the second direction extension.

5. The MTC battery cart of claim 1, wherein, The upper crossbeam layer group (11) includes four upper crossbeams (111), the lower crossbeam layer group (13) includes four lower crossbeams (131), and the upper crossbeam (111) and the lower crossbeam (131) are correspondingly and interval arranged.

6. The MTC battery cart of claim 5, wherein, The middle cross beam layer group (12) comprises eight middle cross beams (121), and each two of the middle cross beams (121) are symmetrically fixed to form a middle cross beam assembly and are arranged at intervals between the upper cross beam (111) and the lower cross beam (131).

7. The MTC battery cart of claim 1, wherein, The support assembly (2) comprises a support rod (21) and a support base (22), and the support rod (21) is connected with the support base (22) at two ends.

8. The MTC battery cart of claim 1, wherein, Wire harness through holes (46) are formed in the front sealing plate layer group (43) and the rear sealing plate layer group (44).

9. The MTC battery cart of claim 1, wherein, The upper longitudinal beam layer group (31) and the lower longitudinal beam layer group (32) are arranged along a second direction, the upper longitudinal beam layer group (31) is perpendicularly connected with the upper cross beam layer group (11), and the lower longitudinal beam layer group (32) is perpendicularly connected with the lower cross beam layer group (13). 10.A commercial electric vehicle comprising the MTC battery vehicle frame according to any one of claims 1-9.

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